Mr. Jordan Trimble reports

SKYHARBOUR'S JV PARTNER ORANO COMMENCES 6-7,000M SUMMER DRILLING PROGRAM AT THE PRESTON URANIUM PROJECT

Skyharbour Resources Ltd.'s joint venture partner, Orano Canada Inc., has recently commenced a large-scale diamond drilling program at the 49,635-hectare Preston uranium project, located in the western Athabasca basin in Saskatchewan, Canada. The drilling program will consist of approximately 6,000 to 7,000 metres of drilling during the summer of 2025. Orano is the majority owner and operator at the project, with Skyharbour owning a minority interest of approximately 25.6 per cent.

2025 exploration program at Preston

The program for the Preston project will consist of a helicopter-supported diamond drilling campaign, totalling 6,000 to 7,000 metres, with up to 28 holes designed to test high-priority targets across the property at depths ranging from 200 to 350 metres. Primary drill target areas include the previously untested Johnson Lake, Canoe Lake and FSAN targets. Target areas are spread throughout the project to ensure assessment credits are met across all claims while testing perspective trends.

Drilling in the Johnson Lake area (Zone 1) will target a broad structural corridor initially identified in an airborne VTEM (versatile time-domain electromagnetic) survey and subsequently refined by a ground-based ML-TEM (moving-loop transient electromagnetic) survey in 2018 and a DC (direct-current) resistivity survey in 2020. Multiple parallel conductors exhibiting moderate to strong responses have been delineated across the grid. A total of four to five drill holes are planned with an average depth of 350 metres for a total of approximately 1,750 metres, contingent on results. The primary objective is to test ground conductors at structurally complex intersections, which are considered highly prospective for uranium mineralization. There has been no drilling completed in the Johnson Lake grid area to date.

The Canoe Lake area (Zone 2) comprises nine conductive trends that remain largely untested, with only one to three historical drill holes completed on each to date. The 2025 program aims to assess high-priority targets for uranium mineralization and to further define Canoe Lake as a prospective discovery corridor within the Preston Lake project.

A total of six to 12 diamond drill holes are planned, totalling approximately 1,200 to 2,400 metres, with an average hole depth of 200 metres. Six zones of interest have been identified based on the review of available airborne and ground geophysical data, characterized by gravity lows near interpreted structural breaks and crosscutting magnetic features. Structural features in the southwestern portion of the grid are of particular interest due to their orientation, which is analogous to the structural trends controlling mineralization at the PLS and Arrow uranium deposits. These targets are on strike with zones of brittle-ductile deformation and hydrothermal alteration observed in historical drilling, supporting their potential for hosting basement-hosted uranium mineralization.

The FSAN zone (Zone 3) will be the most extensively tested area in the 2025 program, with both reconnaissance and direct targeting strategies to be employed. Reconnaissance drilling will consist of three holes totalling approximately 1,050 metres, focusing on discrete airborne EM anomalies near the intersection of prospective east-west structures. An additional seven to 14 holes will be drilled using a more direct targeting approach for a total of 1,400 to 2,800 metres. These holes will test gravity-low anomalies, areas of magnetic disruption and sites of high geochemical response, including SGH (spatiotemporal geochemical hydrocarbon) uranium anomalies and historical surface grab samples with anomalous uranium and pathfinder element concentrations.

The West and Far West grids (Zone 4) have been designated as contingency targets for the 2025 drill program. These areas encompass the western extent of the PL-1 conductive trend, where historical drilling intersected moderately to strongly graphitic, brittle-ductile fault zones with localized hydrothermal alteration. The structural complexity observed in this area enhances its prospectivity for basement-hosted uranium mineralization and warrants further investigation.

2024 exploration program completed at Preston

The 2024 field program marked the first exploration activities conducted by Orano at the Preston project since 2020. The program included a 35.6-kilometre ground ML-TEM survey over the Preston West and Far West targets, focusing on an airborne VTEM conductor at Preston West and following up on a prior reconnaissance survey at Preston Far West.

A ground gravity survey comprising 2,295 stations was also completed over an area encompassing the FSAN and FSANE trends to help with drill target prioritization. In addition, an SGH geochemical survey comprising approximately 1,100 samples was carried out during the summer of 2024. SGH is a cost-effective technique that has been successfully used to detect surficial anomalies associated with buried uranium mineralization in the Athabasca basin.

Preston uranium project

In March, 2017, Skyharbour signed an option agreement with Orano (formerly Areva Resources Inc.) that provided Orano an earn-in option to acquire a majority working interest in the 49,635-hectare Preston uranium project. The significant potential of the project has been highlighted by past discoveries in the area by NexGen Energy Ltd. (Arrow deposit), Fission Uranium Corp. (Triple R deposit) and F3 Uranium Corp. (PLN discovery). Exploration at the project has consisted of ground gravity, airborne and ground electromagnetics, radon, soil, silt, biogeochemical, lake sediment, and geological mapping surveys as well as exploratory drill programs. Over a dozen high-priority drill target areas associated with multiple prospective exploration corridors have been successfully delineated through these methodical, multiphased exploration initiatives, which have culminated in an extensive, proprietary geological database for the project area.

Joint venture and strategic partnership

In early 2021, Orano fulfilled its earn-in option on the project by financing exploration expenditures and making the required cash payments. Upon completion of a total of $4.8-million in exploration spending, a joint venture was established between Orano, Skyharbour and Dixie Gold to advance and develop the project. Orano currently holds a 53.3-per-cent interest in the joint venture, with Skyharbour and Dixie Gold holding 25.6-per-cent and 21.1-per-cent interests, respectively.

Market-maker

The company has engaged the services of Independent Trading Group (ITG) pursuant to an agreement dated and starting on July 1, 2025, to provide market-making services in accordance with TSX Venture Exchange policies. ITG will trade shares of the company on the TSX-V and all other trading venues with the objective of maintaining a reasonable market and improving the liquidity of the company's common shares.

Under the terms of the agreement, ITG will receive compensation of $5,000 per month, payable monthly in advance. The agreement is for an initial term of one month and will renew for additional one-month terms unless terminated by either party with 30 days of notice. There are no performance factors contained in the agreement and ITG will not receive shares or options as compensation. ITG and the company are unrelated and unaffiliated entities.

ITG is a Toronto-based CIRO (Canadian Investment Regulatory Organization) dealer member that specializes in market making, liquidity provision, agency execution, ultralow-latency connectivity and bespoke algorithmic trading solutions. Established in 1992, with a focus on market structure, execution and trading, ITG has leveraged its own proprietary technology to deliver high-quality liquidity provision and execution services to a broad array of public issuers and institutional investors.

Qualified person

The technical information in this news release has been prepared in accordance with Canadian regulatory requirements set out in National Instrument 43-101 and has been reviewed and approved by Serdar Donmez, PGeo, vice-president of exploration for Skyharbour Resources, who is a qualified person as defined by NI 43-101.

About Skyharbour Resources Ltd.

Skyharbour holds an extensive portfolio of uranium exploration projects in Canada's Athabasca basin and is well positioned to benefit from improving uranium market fundamentals with interest in 36 projects covering over 614,000 hectares (over 1.5 million acres) of land. Skyharbour has acquired from Denison Mines, a large strategic shareholder of the company, a 100-per-cent interest in the Moore uranium project, which is located 15 kilometres east of Denison's Wheeler River project and 39 kilometres south of Cameco's McArthur River uranium mine. Moore is an advanced-stage uranium exploration property with high-grade uranium mineralization at the Maverick zone, which returned drill results of up to 6.0 per cent U3O8 (triuranium octoxide) over 5.9 metres, including 20.8 per cent U3O8 over 1.5 metres at a vertical depth of 265 metres. Adjacent to the Moore project is the Russell Lake uranium project, in which Skyharbour is the operator with joint venture partner Rio Tinto. The project hosts several high-grade uranium drill intercepts over a large property area with robust exploration upside potential. The company is actively advancing these projects through exploration and drill programs.

Skyharbour also has joint ventures with industry leader Orano Canada, Azincourt Energy and Thunderbird Resources at the Preston, East Preston and Hook Lake projects, respectively. The company also has several active earn-in option partners, including Canadian Securities Exchange-listed Basin Uranium Corp. at the Mann Lake uranium project, TSX-V-listed North Shore Uranium at the Falcon project, UraEx Resources at the South Dufferin and Bolt projects, Hatchet Uranium at the Highway project, Mustang Energy at the 914W project, and TSX-V-listed Terra Clean Energy at the South Falcon East project. In aggregate, Skyharbour has now signed earn-in option agreements with partners that total over $36-million in partner-financed exploration expenditures, over $20-million worth of shares being issued and $14-million in cash payments coming into Skyharbour, assuming that these partner companies complete their entire earn-ins at the respective projects.

Skyharbour's goal is to maximize shareholder value through new mineral discoveries, committed long-term partnerships and the advancement of exploration projects in geopolitically favourable jurisdictions.

We seek Safe Harbor.